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How to Restore Timber Sash Windows in CambridgeMany homes in Cambridge have traditional sash windows and the homeowners are proud of their appearance. Sash windows can become stuck and are difficult to open and close. This is usually due to moisture which can cause the wood to expand.Box sash windows were historically operated by chains, cotton cords and weights made of lead. Modern sash windows feature hidden springs to overcome this issue.1. AestheticsTimber sash windows, unlike PVC-u windows which are manufactured in imperial sizes and are modular, can be restored to original dimensions. This lets the restoration meet modern day energy requirements while complying with conservation area regulations. It also offers a window that is far superior to uPVC alternatives.Sliding windows with sash were initially only used in large structures or public buildings, however this changed when production became less expensive and craftsmen could produce larger frames with more glass. At the close of the 18th century, sash windows had become the most popular wooden style in British homes. Because they were simple to open sash windows allowed light into rooms without curtains.The first windows were made of plain glass, but by the 17th century, sash windows began to become more decorative, with coloured glazing bars and moulded mullions. They were costly initially, but when glass production became less expensive and more efficient, they were commonplace in many homes of the period.In the 19th century, it was possible to make large, sturdy glass that did not require supporting bars. This allowed the frame size to increase further, which meant more of a view out of the window. This was a significant advancement.The introduction of the double-hung sliding sash was another significant improvement that came about in the I920s and at the beginning of the I930s. The double-hung sliding sash was another important improvement that was made at the end of the I920s and at the beginning of the I930s.Oak was used in older examples and more prestigious buildings. A split bead divides the two sashes and it is important that this is well maintained to prevent rattles and drafts. It is also essential that the idler and sash pulley wheels are in good shape as they aid in operating the window.2. Energy efficiencySash windows replaced hinged cases as clearer and larger sheets became available. Plate glass was placed in frames of timber that were rebated, then secured with glazing sprigs and putty was applied to the frame's sides to ensure watertightness. This form of glass gradually replaced leaded lights.The introduction of sashes created a need for a much greater variety of ironmongery, including the most basic fittings, brass pulleys, lead (and later cast iron) weights, sash stoppers shutter hinges, knobs and shutters, and a range of fasteners to hold the sashes to their the right place. These were usually decorated with patterns, inscriptions and engraved patterns to identify the maker.Sash windows can be very energy efficient when they are maintained regularly. However, if they are not maintained, they can become draughty and let in cold air. Paint and putty can also cause draughts. You can fix this problem by using wood-to-timber solutions.The market for replacement windows rests on the perception that old windows are damaged and beyond economical repair, but they can be maintained with a bit of care. Repairs can be costly and cause many disruptions in the home. To prevent this, many homeowners opt for a complete replacement with PVC-u windows from one of the largest "one stop shop" installation companies. They can replace all windows in a house in one day, saving time and eliminating the need for various tradesmen to coordinate. They can also be fitted with 'energy saving' double-glazing to achieve greater energy efficiency than are possible with traditional sash windows. These double-glazed windows aren't capable of resembling the proportions and sections of the sashes made of timber from the past.3. SecurityTraditional windows can be made more secure without compromising their appearance. There are many types of ironmongery that are available including sash chains mortice bolts and locks for sash. These can be installed to ensure that the window is still capable of being opened for ventilation or cleaning. They are usually not noticeable since they are designed to be used in conjunction with sash windows. They can be used in conjunction with traditional sash window catch. These should be replaced by more robust versions, such as ones that have double screws or sprung levers to decrease the risk of being hit with hammers.Sash-window frames were typically constructed from slow-growing deal or, in the more elegant homes made of oak. If the glazing bars are still in good condition and in good condition, they should be kept. If it is possible, the cills of the timber should be replaced by wood that is in line with. Many PVC-U firms offer a one-stop shop installation service. They can take down and replace windows on an entire home in one day, without the need to involve other tradespeople.4. VentilationWhen sash windows first introduced in the 17th century they allowed a significant amount of light into the buildings. In the 18th century, they were modified so that more light could be let into the rooms. Larger glazing panes were also produced. The result was a lighter appearance and windows with more elegance.The introduction of sash windows also necessitated an entirely new range of ironmongery. Early pulleys were made of wood. Later Victorian ones were made of brass or a mixture of wood and leaded. There were also different kinds of shutter hinges and knobs. The ironmongery pieces need to be kept clean and preserved in order to appreciate their exquisite design.To ensure they remain in good shape, timber windows require regular maintenance. Lack of regular attention may cause:sashes that no longer slide easily.holes in the frame allow water, which can cause damage and decay.break down of putty, allowing water to penetrate, which could cause decay in the frame and cill.Steel casement windows became popular in the I920s & I930s due to their strength and slim, cheap and matched the trend of healthy living. Research has shown that softwood sash window are just as effective as PVC-u windows and can even be more attractive.The replacement window industry has done a great job convincing homeowners that their old windows were decayed and drafty. They were also beyond the budget for repair. Many older timber windows can be fixed and used for a long time with minor repairs.5. MaintenanceA traditional sash window needs regular maintenance and inspection. Inability to keep up with this can lead to the sash cords breaking, a lot of wear on the glazing bars and degradation of the paint and putty. The removal of sashes could also result in structural movements within the frame, which can cause the sash to not close correctly. The sash could also get stuck in the open position, allowing water and draughts to enter the property.Moisture penetration is the most common cause of damage to windows made of timber. This can be prevented with thorough painting, regular repairs and elimination of the source of dampness. The paint can be removed to reveal the soft, decaying wood. Any rotten sections of timber must be removed and the affected area should be carefully scarfed or pieced in using replacements made of the same type of wood as the ones that remain. cambridge replacement windows RepairMyWindowsAndDoors of repair maximises the amount of original fabric that is left and is one of the least invasive ways of treating decay caused by timber.A wood condenser made of resin is an alternative to the traditional staining or sanding. It is brushed on the surface of the timber to help stabilize it and shield it from further damage. It is especially useful for the treatment of pulley cords and sash, where it can prevent breakage.It is important to restore and not replace any historic ironmongery such as the sash latches and stays. These items can be very difficult to replace without damaging the quality of the original design. It is also recommended that modern fittings made of aluminium like sashlifts and chainstays, should be avoided since they could cause corrosion and deterioration of timber frames and sashes.